I am totally new to flow. In our SharePoint library we have two relevant columns for this task:
"Valid to" (date column)
"Document responsible" (person column)
"Valid to" holds a date value, and I need to create a reminder --> that sends a mail to the document responsible for the specific list item/document one month _earlier_than the date value of the "document responsible".
For example: The date in "valid to" is 2020.12.30 for a list item. One month before this date a mail/reminder is sent to the person on the "document responsible" person column.
I was thinking to use the trigger "when an item is created or modified" since the date value could be changed/modified later on.
My problem is where to start - especially in the scenario where a timer is set in flow to send a mail for a specific date which later changes. How to stop the timer and adjust to the new date?